import Vue from 'vue'
import Router from 'vue-router'
import Login from './components/Login.vue'
import Home from './components/Home.vue'
Vue.use(Router)

const router = new Router({
  routes: [
    { path: '/', redirect: '/Login' },
    { path: '/login', component: Login },
    { path: './home', component: Home }
  ]
})
// 挂载路由导航守卫
router.beforeEach((to, from, next) => {
// to 将要访问的路径
// from 代表从哪个路径跳转而来
// next 函数，表示放行  next()放行；next('./home')强制跳转
  if (to.path === '/login') return next()
  const tokenStr = window.sessionStorage.getItem('token')
  if (!tokenStr) return next('/login')
  next()
})
export default router
